Gerson Harbor Freight Respirator Replacement Cartridge Adapter

thingiverse

When you buy the Gerson respirators from Harbor Freight they sell replacement organic vapor cartridges right next to them. They both say P95. They are both Gerson. No other respirators in the store have even remotely similarly shaped cartridges.However, HF being the jerks they are, the two products don't work with one-another! They literally stock replacement cartridges for respirators they don't even sell and have the nerve to place them next to each other on the wall!Therefore, I designed and printed an adapter so that you can use the replacement cartridges after all. Keep in mind though that you need to keep the seal and breathing-flap from the original cartridges!Steps (see pictures as well):1- Print file x22- Inside mask, break of 2+ attachment legs from original cartridge to remove them3- Slide part into cartridge attachment holes from inside the mask4- Place gasket on outside of mask5- Attach cartridge to print on outside of mask and rotate clockwise until it locks into place and seals tight onto gasket6- Hook breathing flap on 'nub' of print inside of maskThing refers to the following HF products:Respirator, either size:Medium: https://www.harborfreight.com/brands/gerson/p95-maintenance-free-dual-cartridge-respirator-66554.htmlLarge: https://www.harborfreight.com/brands/gerson/p95-maintenance-free-dual-cartridge-respirator-large-67727.htmlReplacement cartridges: https://www.harborfreight.com/brands/gerson/organic-vapor-cartridge-2-pack-56988.html